Johnson Controls GRD10A-609 Plastic Guard

The Johnson Controls GRD10A-609 is a professional-grade plastic thermostat guard designed to protect sensitive temperature control interfaces in commercial and industrial environments. This G Series enclosure features high-impact Lexan construction, providing a robust physical barrier against unauthorized adjustment or accidental damage. For contractors managing retrofit projects, the GRD10A-609 serves as the field-verified direct replacement for UG-3C (Clear Guard) and UG-3PC legacy models. Each unit is supplied with the necessary baseplate and mounting ring to ensure a secure, flush installation on various wall surfaces. The clear plastic material allows for immediate visibility of the setpoint and current readings without removing the cover, maintaining system oversight while preventing tampering. This thermostat lock box is an essential component for high-traffic zones where maintaining precise climate control is critical to operational efficiency. With its standardized mounting footprint, it streamlines the replacement process for seasoned technicians.

• Universal Compatibility: Engineered as a legacy successor for UG-3C and UG-3PC components.
• Tamper Resistance: Durable plastic thermostat cover prevents unauthorized setpoint changes in public spaces.
• Installation Ready: Includes a dedicated baseplate and mounting ring for a complete field setup.
• Enhanced Visibility: Clear Lexan-style housing ensures display readings remain legible for HVAC system monitoring.

Is the GRD10A-609 compatible with older Clear Guard models?
Yes, this unit is the designated Johnson Controls replacement guard for the UG-3C and UG-3PC series, utilizing a similar mounting profile.

Does this guard require a key for access?
While designed to restrict access, the G Series provides a secure enclosure to safeguard commercial thermostat controls from environmental and human interference.

Can this be mounted over existing thermostats?
The included mounting ring and baseplate are designed to fit standard thermostat footprints, making it ideal for field retrofits in facilities maintenance.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.